Dispensing device



Aug. 27, 1940. H. K4 ULLMAN DIsPENsING DEVICE l Filed Feb. 25, 1958 @www Patented Aug. 27, 1940 UNITED STATES PATENT QFFICE l if i l e e V2,212,627 n `inisPnNslNd DEVICE Henry 4K. Ullman, Washington, D. 1C. Applieatimi February 25,1938, seriarndieaess `6` Claims. (ci. en -47) `container onto said table.

My invention relates to dispensing devices and more particularly to containers adapted to supply uid materials, and speccally an adhesive such as mucilage, in a convenient manner.

Heretofore the handling of mucilage has been done in a most inconvenient manner, either by requiring the operator to insert a brush intola mucilage container, or by supplying the container with a rubber cap havinga smallv slit therein through which the mucilage may seep upon the appliance of pressure to said cap when said container is in an inverted position. Inlboth of these methods the mucilage is prone to harden, either on the brush or around the slit in the rubber cap and consequently cause considerable difculty and discomfort to an `operator attempting to coat the proper amount of mucilage upon an article. i

Having in mind the defectsfof the'prior methods, it is an object of my invention to provide adispensing container for an adhesive such as mucilage that is simple in `both,operation and construction.

It is another object of my invention to provide a dispensing container for mucilage that is` adapted to readily supply the proper amountof muoilage at all times. e

It is still another object of` my inventionto provide a dispensing container for mucilage that isreadily operated and/or cleaned Without causing the operator to soil his hands.

It is a further object of my `invention to provide a dispensing container for mucilage that will provide a given flow of the mucilage regardless of the amount of mucilage, above a certain minimum, within the container. n It is a still further objectief my invention to provide a dispensing container for adhesives arranged andadapted sothat an `article to be coated isk applied to a iiat operating table on the device rather than the device being applied, in an inverted position, to the article.

The foregoing objects and others ancillary thereto I prefer to accomplish as follows: I` providea container having. an upper wall forming a at operating surface; and having means for dispensing material `from within said According to a preferred embodiment of my invention, I provide a container comprising a hollow base having a at upper surface forming an operating table upon `which mucilage may be flowed so that an object or'sheet maybe rubbed or daubedtherein to be coated with theyproper amount Of 'mlwilage- ,Mountednn theear. .of

this base is a reservoir adap-ted to contain muoiffl lage which may be iiowed onto the operating tableby the` force of gravity. Feeding apertures may be located" in the operating table through which the mucilage may flow,and a vent is provided in the reservoir to permit the displacement of said mucilage.

The flow of the `mucilage onto the operating table is controlled by a lever system connected to valves associated Withsaid feeding aperture and said vent. This lever system is located Within the base andthe reservoir. An adjustable bar is mounted upon the operating table, whereby the mucilage may be spread overthe table or any mucilage which may be left thereon may be readily scraped off, Whether in the fluidor hardened state. i

The novel features that Iconsider `characteristic of my inventionare set forth with particularity in the appended claims. vThe invention itself, however, both as to its organizationand its method of operation, together with additional objects and advantages thereof will best beunderstood from the following description of` a specinc embodiment when read in connection with the accompanying drawing, in which like referencecharacters indicatek like parts throughout.

Fig. 1 is a front view in elevation of my adhesive dispensing device;

n Fig', 2 is a side View in elevation of my adhesive dispensing device; Fig. 3 is ya view in cross section taken along the line 3-3`of Fig. V1; and. f l

VFig. l4r is a side View in elevation and partial cross section of a modied form` of my dispensing device incorporating a modified form of comprising ahollow base l supportinga reservoir 2 on its .rear portion. The base iis provided with a flat upper surface or operating table `i upon `which adhesive-may be iiowed and an object or sheet may bev rubbed therein to be coated with said adhesive. Y The base yI is also provided with a flat bar 4 which is adapted toslide along thesurface of tlieopratine table, ,3- `This fiat pag.41 is pivotally and it also must be provided withr supported at its ends by arms 5 adapted to Slidingly cooperate with ribs 6 extending longitudinally along the upper edge of the side walls of the base I. The bar 4 is provided with a handle 4' whereby it may be tilted and moved over the surface of the Itable 3. If the bar 4 is tilted slightly away from the surface of the tab-le 3 it will act as a spreader to spread an even layer of adhesive over the table. On the other hand, if the bar 4 is tilted tightly against the surface of said table 3 it will act as a scraper to remove any surplus adhesive that may have accumulated from time to time.

Another type of adhesive contacting bar isl shown in Fig. 4. This modification comprises a pivotal ybar 3|) that is supported at one'end by an upright pin 3| that is seated in the upper wall 3 of the base I. A handle 32is mounted on the opposite end of the bar 30 from the pin 3| so that said bar 3|) may be readily swung on said pin 3|. The pin 3| is provided with a head 33 that is spaced from the upper edge of said bar SII. By this means said Ibar 30 may .be lifted slightly to spread the adhesive over the table 3 or the bar may `be pressed tightly against the surface of said table 3 to scrape ythe adhesive therefrom.

The reservoir ,2 is provided with a convenient supply opening in the form of a threaded neck I and a screw cap 8, to permit the ready lling of said reservoir with a fresh supply of mucilage.

A vertical tubular housing S is associated with the reservoir v2 and extends down to and in communication with hollow ibase I. This .tubular housing 9 is adapted to contain a valve controlling mechanism that will be more fully described hereinafter.

As shown in Fig. 3, the reservoir 2 may be supplied with an adhesive such as mucilage M. The reservoir 2 is in communication with the hollow base I by means of an opening IIJ extending through the wall between said members. A supply aperture II is located in the center of the operating table 3 to permit a flow of mucilage M from the reservoir through the` opening III and the hollow base I to the operating table 3.

The flow of the mucilage through this aperture II is controlled by a valve I2 which is mounted upon a lever I3. The lever I3 is fulcrumed on a stud I4 and pivotally connected, by a pin I5, to a plunger I6 located within the tubular housing 9. The plunger I6 is provided with a piston II to prevent the mucilage from owirig upwardly into thetu-bular housing 9, or the air within the housing from seeping down'into the mucilage chamber and thereby cause the mucilage to harden. Furthermore, this piston I'I acts to Iaccelerate the pressure upon the mucilage upon the opening of the supply aperture II as will lbe more fully disclosed hereinafter. As shown in Fig, 4, the operating table 3 may be provided with a plurality of supply openings II and cooperating valves I2.

The plunger IB extends upwardly through the top of the tubular housing 9 and thence through an air vent 'chamber I8 extending from the wall of the reservoir 2. This chamber is provided with a vent I9 that is controlled by ,a valve member 20 carried by the plunger IS. A finger piece 2| is fixed on the plunger I6 adjacent the valve member 20. A helical spring 22 is coiled about the yplunger IB and cooperates with the up-per wall of the tubular housing 9 and the finger piece 2| to resiliently retain said plunger I6 in its upper position, wherein the valve I2 acts to seal the mucilage supply aperature II and the valve 20 acts to seal the air vent I9.

The operation of my device should be readily understood in view of the foregoing description. When an operator wishes to coat an article or sheet with mucilage, he merely presses the nger piece 2|. This action depresses the plunger I6 against the force of the spring 22, thereby removing the valve 2D from the air vent I9, and pivoting the lever I3 on its fulcrum I4 to remove the valve I2 from the mucilage supply aperture I I. The mucilage M is thereby permitted to flow through the aperture IU into the hollow base I and through the supply yaperture II on to the operating table 3.

This flow is aided bythe opening of the vent I9 t0 permit the passage of air into the upper.

portion of the reservoir 2 to displace the mucilage which is permitted to flow therefrom. Furthermore, as the plunger I6 is depressed the piston II is suddenly forced down against the mucilage within the tubular housing 9, thereby accelerating the pressure of the mucilage at the supply aperture II, and increasing the head of the supply Y mucilage M within the reservoir 2. This accelerated force will cause the mucilage to immediately ow through said supply aperture II.

When a suiicient amount of. mucilage has been permitted to flow upon the operating table 3, the operator may release the nger piece 2| to stop the'flow of mucilage. The compressed helical spring 22 then acts to r'eturn the plunger IG and lever I3 to their normal positions, thereby closing the mucilage supply aperture II and the air vent I9 with the valve 2li. The operator may then spread the mucilage, if he so desires, by the use of the lbar 4, and rubor dab the article in said mucilage, rwhereby the article .becomes evenly coated with the mucilage M in a sufficient but not excessive quantity.

If a surplus of mucilage is withdrawn or flowed upon the surface 3 and is permitted to harden thereon, the next operator may readily remove this surplus `merely yby tilting the bar 4 tightly. against the surface ofthe table 3 and slidingl it therealong. The supporting arms 5, engaging the ribs 6, will guide the bar 4 over the surface 3 of the table in close association therewith so that all of the mucilage may be scraped therefrom. In -using the modification shown in Fig. 4, the bar 30 is merely swung upon'the `pin 3| by the handle 32. A

It is readily evident from the foregoing description that my adhesive dispensing device has many advantages over the prior art. My device is adapted to provide a sufficient quantity of adhesive to coatan article in the desired manner without causing the operator to soil his hands. Furthermore, in coating an article in this manner. a suicient but not excessive amount of adhesive is applied to the article. Any excess adhesive may be readily removed with the minimum of eifort and the maximum of cleanliness,V and the supply of adhesive may always 'be easily renewed without great diflculty to the operator.

It is to be noted that though I have'described v my invention as a dispensing device for adhesives and specifically mucilage, it is to be understoodY ble.k My invention, therefore, is not to be re- 75' stricted except insofarl as is necessitated by the prior art and the spirit of the appended claims.

What I claim andwish to secure by Letters Patent in the United States of America is:

`LA dispensing device comprising a container including a header portion, an upper wall of said container being adaptedto form an operating table, a normally closed discharge aperture in said operating table, a normally closed air vent in said header portion, valves for opening said discharge aperture and said air vent, and means form an operating table,said container having means for providing a supply of the material therein `on said operating table, and a bar supported in sliding relation with respectl to the surface of the operating taible, whereby to Contact said material on saidtable.

3. A dispensing device comprising a container, an` upper wall of said container being adapted to form` an operating table, said container havingv means for providing a supply of the material therein on said operating table, and a `pivotally adjustable bar supported in sliding relation with respect to saidoperating table, whereby said bar may be operated to spread or to remove said Inaterial from said operating table.

4. A dispensing device comprising a container including a header portion, an upper wall of said container being adapted to form an operating table, a discharge opening in said operating table,

an air vent in said header portion, valves for closing said discharge opening and said air vent,

` levers supporting said valves so that said discharge opening and said air vent may be simultaneously opened to provide a supply of the material within said container on said operating table, and a piston member4 associated with saidv levers to provide anaccelerated force `to the material within the container upon the opening of the valves.

5. A device for dispensing adhesives of the type of liquid rubber cement comprising a container including a header portion, an upper Wall of said container constituting an operating table the upper vsurface of which is normally out of communication with the interior of said container, a valve in said operatingtable for permitting the now of adhesive therethrough, an air venty in said header, a spring forl normally maintaining said valve and said vent in closed position, and manually operable means for simultaneously opening said `valve and said vent, the operating `table being fabricated. of non-absorptive material, whereby no appreciable amount of adhesive will be retained thereby during periods when the device is not in operation. .I

'6. A device for dispensing adhesives of the type of liquid rubber cement comprising a container including aheader portion7 an upper wall of vsaid container constituting an operating table the upper surface of which is normally out of communication with the interior of said container, a plurality of valves in said operating table for permitting the flow of adhesive therethrough, an air tion, and manually operable means for simultaneously `opening said` valves and said vent, the operating table being fabricated of non-absorptive material, whereby no appreciable amount of adhesive will be retained thereby lduring periods when the device is not in operation.

HENRY K; ULLMAN. 

